update dependencies, fix errors

[mimmi20]

With this PR the dependencies are updated, and some libraries related to PHPStan are added. All new issues are fixed.

Fixes #1999,

[codecov]

Codecov Report

Merging #1988 into master will decrease coverage by 21.78%.
The diff coverage is 15.92%.

@@              Coverage Diff              @@
##             master    #1988       +/-   ##
=============================================
- Coverage     73.42%   51.64%   -21.79%     
- Complexity      905      919       +14     
=============================================
  Files            62     1702     +1640     
  Lines          2973    62165    +59192     
  Branches          0    27500    +27500     
=============================================
+ Hits           2183    32106    +29923     
- Misses          790    30059    +29269

Flag	Coverage Δ	Complexity Δ
#full	46.7% <ø> (?)	0 <ø> (?)
#lite	2.07% <ø> (?)	0 <ø> (?)
#standard	26.76% <ø> (?)	0 <ø> (?)

Impacted Files	Coverage Δ	Complexity Δ
...s/user-agents/apps/yahoo-app/yahoo-mobile-app.json	64.7% <ø> (ø)	0 <0> (?)
.../Browscap/Command/ValidateCoreDivisionsCommand.php	10.41% <0%> (-0.95%)	9 <0> (+1)
src/Browscap/Command/RewriteDivisionsCommand.php	2.87% <0%> (-0.14%)	55 <0> (+2)
src/Browscap/Command/ValidateDivisionsCommand.php	10.41% <0%> (-0.7%)	9 <0> (+1)
src/Browscap/Command/RewriteDevicesCommand.php	13.15% <0%> (-1.55%)	6 <0> (+1)
src/Browscap/Command/ValidateCommand.php	8.19% <0%> (-0.14%)	10 <0> (ø)
src/Browscap/Command/ValidateDevicesCommand.php	10.41% <0%> (-0.95%)	9 <0> (+1)
src/Browscap/Command/BuildCommand.php	29.41% <0%> (-1.84%)	5 <0> (ø)
src/Browscap/Command/ValidateEnginesCommand.php	10.41% <0%> (-0.95%)	9 <0> (+1)
src/Browscap/Command/ValidateBrowsersCommand.php	10.41% <0%> (-0.95%)	9 <0> (+1)
... and 1656 more

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